Bar breaker

Bar breaker

Grouped product items
Product Name Qty
Bar breaker, cast iron, Natural Gas
$181.50 $165.00
Bar breaker, cast iron, LP Gas
$181.50 $165.00
Bar breaker, spare rods, cast iron, pk/10
$11.44 $10.40

This instrument permits the fundamental heat expansion and contraction experiment and demonstrates the enormous forces involved.

The classic cast iron Bar Breaker is a device that demonstrates the unstoppable forces of expansion and contraction. A steel bar lies in a cast iron frame and a cast iron pin locks the bar in place. A gas burner is fitted into the cast base and heats the bar. As the bar expands, it tries to bend the cast iron rod. Finally the cast iron pin breaks with a loud report. With the steel bar hot, another pin can be fitted and locked. As the bar cools and contracts, again the cast iron bar is broken with a loud report. 2 models are available to run on natural or LP gas.  

Supplied complete with set of 10x small cast iron pins used for breaking.

Instructions included.  Made in Australia.

Physical size: 365x65x95mm LxWxH.